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(No Model.) A 3 Sheets-Sheet -1.

R. S. KIRKPATRICK.

UNLOADING APPARATUS.

No. 449,448. Patented Mar. 31, 1891..

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No. 449,448. Patented Mar. 31, 1891.

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(No Model.) 3 Sheets-Sheet 3.

R. S. KIRKPATRICK. UNLOADING APPARATUS.

0. 49,448. Patented Mar. 31 18 91. J

NITED STATES PATENT ()FFICE.

ROBERT S. KIRKPATRICK, OF HARLAN, IOWVA, ASSIGNOR OF ONE-FOURTH TO R. P. DAMMAND, OF SAME PLACE.

UNLOADING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 449,448, dated March 31, 1891.

Application filed October 31, 1890. Serial No. 369,990. (No model.)

To all whom, it may concern:

Be it known that 1, ROBERT S. KIRKPAT- RICK, a citizen of the United States, residing at Harlan, in the county of Shelby and State of Iowa, have invented certain new and useful Improvements in a Combined Wagon-Unloader and Elevator, of which the following is a specification.

The object of my invention is to obtain a wagon unloader consisting of a platform mounted on runners or Wheels, such mounted platform having an approachpivoted thereto at one end thereof and an exit at the other end thereof, an elevating apparatus secured to the mounted platform, machinery for actuating the elevating apparatus, devices whereby a loaded wagon-body may be elevated from off the runningegear of the wagon, if necessary, and the forward end thereof elevated into a position wherein the contents of the Wagon-body will automatically slide therefrom and into a spout delivering into the elevator well such contents, and machinery whereby the team hitched to the wagon which 2 5 has last been unloaded or the team taken from the wagon which is being unloaded may actuate the elevating machinery above referred to. 1

I have illustrated myinvention by the draw- 0 ings accompanying and forming a part of th s specification, in which Figure l is a plan view of my combined wagon unloader and elevator, with a portion of the flooring thereof removed to permit a 3 5 view of the working parts of the horse-power device to be had; Fig. 2, a longitudinal section of the invention; Fig. 3, a cross-section; Fig. 4, a detail view of the mechanism by which the elevator apron is rendered adj ust 4o able at its upper end in reference to the crib or other receptacle in which the corn or grain delivered from the Wagon thereto is elevated and delivered; Fig. 5, a perspective view of the elevator-bucket used by me in my inven- 5 tion; Fig. 6, a plan view of a sprocket-wheel and ratchet used by me, and Fig. 7 an elevation thereof.

Like letters refer to like parts throughout the several views thereof.

A is a mounted platform; A, apivoted approaoh thereto, and A a pivoted exit thererom.

B B are runners or skids upon which the platform A is mounted.

b b are cross-ties extending from one of the runners B to the other one thereof.

I) Z) are stringers resting upon the crossties b b and extending underneath the flooring of the platform A. These stringers b b can be extended beyond the flooring of the 60 platform A, if desired, and such extension forms the fulcrum or pivotal point upon which the approach A and exit A respectively, turn. Wheels ortrucks may be placed underneath the mounted platform A, when desired, in the ordinary way, and the runners B B raised thereby from the ground.

C is a bench or support for the tail end of a wagon-body.

O O are rods pivoted to the bench O and to the floor of the platform A. This bench G is laid horizontally upon the floor of the platform when a team and wagon are being driven on the platform, and when the wagon has been stopped at the proper place on the platform the bench can be raised into a perpendicular position with plate 0 which forms the top of the bench directly underneath and in contact, or nearly so, with the wagon-body.

D is a movable spout, one end of which is supported upon a horse or legs, and the other end open to deliver corn or grain to the well i at the bottom of the elevator-shaft.

E E E E are a series of posts tied together by ties or timbers e e and e e, and constitute a frame upon or within which are mounted the elevating devices for raising the corn or grain from the bottom of the elevator-shaft, and also the elevating device for raising the forward end of a wagon-body from off the running-gear thereof.

F is a rotatable pulley mounted about midway between the sides of the platform on this framework, and F is a loose drum mounted to one side of the platform on such frame. 5

F is a crank-shaft adapted to have wound and unwound thereon by the turning of the crank thereof the rope or chain f.

f is a pulley-block, and f f are hooks sccured to the block f.

IOO

One end of the rope or chain f is secured on bar 6 which extends from one of the horizontal timbers c to the next adjacent one thereof, and the rope or chain, after passing downward and through the pulley-block f, extends upward again over pulley F and drum F, and from thence downward to and around crankshaft F The dotted rectangle G in Fig. 2 indicates the body of a wagon, which is illustrated as having its front end suspended by the elevating device obtained by the constructions last above described.

bench or support 0, with its tail-board laid over upon the spout D. When the wagon-' body is in this position, it isevident that the contents thereof will by gravity slide therefrom into spout D, and from thence will extendto the well at the bottom of the elevating apparatus, which I will now proceed to describe.

'H H are drums rigidly secured on shafts h h. respectively.

H is a rope adapted to be wound and unwound on drum H, and H is a like rope or cable adapted to be wound and unwound upon drum H.

17. is a rotatable shaft at right angles with shafts h h.

h 72,3 are beveled gear-Wheels rigidly secured to shafts h h kg. The purpose of shaft 72 and intermeshing beveled gears h 713 is to obtain means whereby when the rope or cable is unwound from either of the drums H H, such drum so being turned by the unwinding of the cable therefrom will act as a driving mechanism to the other of the drums. Either, but not both, of the ropes orcables I'1 H may be secured to the tail end of a wagon leaving the platform A; or the team may be unhitched from the wagon standing upon the platform A and hitched to such rope or cable and be driven from the platform. One of the drums H H will thereby be rotated by the unwinding of the rope or cable therefrom, and the other of such drums will by the mechanism last described be rotated in the other direction and the other rope or cable will be thereby wound thereon.

The one of the drums H H which is actuated by the unwinding of the rope or cable therefrom will also actuate the elevating device, andin order thatthe elevating machinery may at all times move in one direction, whichever way one of the drums may be turning and not interfere or be interfered with by such differentdirections of revolution in the drums, I place sprocket-wheels H and H on shaft 71 h, respectively, with sprocket-chains 77, and its extending therefrom and over the sprocketwheels H and H respectively, on shaft h. Sprocket-wheels H H have ratchet connection with shaft iii-that is to say, the sprocket-wheels are mounted loosely on the shaft; with dog 7L7 on each of the sprocket-wheels The rear end of the, wagon-bod y is illustrated as resting upon the adapted to press against the ratchet-teeth of wheel H which is rigidly secured to shaft h".

'i is a revoluble shaft at right angles with shaft h, and I is a beveled gear thereon intermeshing with beveled gear H on shaft 72/ I I are sprocket-wheels rigidly secured to shaft 1'. Over sprocket-wheel 1' there is placed the sprocket-chain 0?, which extends there from to and over the sprocket-wheel secured to the shaft j, on which are rigidly secured the drums or rollers carrying and'actuating the apron J. This apron J runs underneath the elevator-well and carries to one side of the platform A all shelled corn dropping from the elevator-buckets through holes in the bottom of the elevator-well.

From and over sprocket-wheel I there is placed the sprocket-chain 1?, which extends to and over the sprocket-wheel I which sprocket-wheel is rigidly secured to the shaft on which it is placed, and on this same shaft is placed the geared wheel intermeshing with geared wheel 6 K is a sprocket-wheel driven by sprocketchain 70, and K is asprocket-wheel driven by sprocket-chain k.

' K is the elevator-apron, and k k are elevator-buckets.

Zis a sprocket-chain extending from sprocket-wheel 13 to sprocket-wheel L, and Z isa sprocket-chain extending to and over sprocket-wheel L. Sprocket-wheel L is rigidly secured to shaft [64, over which the elevatorapron K passes, and by which such apron is actuated.

M M are sticks to which the journals of shaft Z are secured at their meeting ends, such shaft also forming the pivot around which a limited movement of these sticks is permitted. are pivoted at i 4', respectively.

N N are the frames carrying the elevatoraprons K and K. These frames N N are each pivoted to the platform A at their lower ends, and at their upper ends they may be moved in and out from and over the platform A a distance controlled by suitable mechanism on the frame formed by posts E EE E and tie-timbers e c e c, hereinbefore described.

I have illustrated a mechanismwell adapted to limit the movement of the frame N, such mechanism consisting of the geared or toothed rack O, with teeth 0 O thereon, and springzga tg 0 adapted to intermesh with the teeth 0 isa pole or cord secured to the springcatch 0 by means of which the spring-catch is disengaged from the teeth 0 O.

The elevator-bucket 76 is designed to elevate corn on the car from the elevator-well, and is not designed or adapted toelevate corn shelled from thecob, such shelled corn dropping through the interstices between the wires P P and falling therefrom onto the apron J, as hereinbefore described.

P P are the ends of the elevator bucket k The other ends of these sticks IIC P P wires forming a part of its construction, and P a bar connecting the ends P P together. Bar P also forms a support for the wires P I m The manner in which the several parts of the elevator-bucket are united together is well illustrated in Fig. 5 of the drawings. Where corn shelled from the cob or where grain is to be elevated by the buckets 7:5, such bucket is of the ordinary construction.

I have throughout this specification used sprocket-Wheels and sprock et-chains for transmitting rotary movement from one shaft to another; but it is evident that an ordinary pulley with a belt thereon may be used, if preferred.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is

1. In a combined wagon unloader and elevator, a mounted platform having an approach at one end and an exit at the other pivoted thereto, an elevatorframe pivoted to the mounted platform by the shaft carrying the driving-pulley of the elevator-apron in such elevator-frame, a frame rigidly secured to the mounted platform, a shaft journaled on the frame, arms pivoted together on a shaft having pulleys thereon, one of the arms pivoted at one end toarotatable shaft mounted on the rigid frame and the other of the arms pivoted at one end toarotatableshaft mounted in the elevator-frame near the upper part thereof, and such shaft having a pulley thereon, and driving-belts connecting the pulleys on such shafts, whereby the elevator-apron frame may be pivotally moved and the elevator-apron contained therein be driven in any of its possible positions by such shafts, pulleys, and belts, substantially as described.

2. In a combined wagon unloader and elevator, a mounted platform havingan approach at one end and an exit at the other pivoted thereto,in combinationwith an elevator-frame pivoted to the mounted platform by the shaft carrying the driving-pulley of the elevatorapron in such elevator-frame, a frame rigidly secured to the mounted platform, a shaft journaled on the frame, arms pivoted together on a shaft having pulleys thereon, one of the arms pivoted at one end to a rotatable shaft mounted on the rigid frame and the other of the arms pivoted at one end to a rotatable shaft mounted in the elevator-frame near the upper part thereof, and such shaft having a pulley thereon, and a lever pivoted to the apronframe and having a rack thereon extending into the rigid frame, and a catch on the rigid frame adapted to intermesh with the rack and retain the elevator-frame in a given position, with driving-belts connecting the pulleys on such shafts,whereby the elevator-apron frame may be pivotally moved and secured and the elevator-apron contained therein be driven in any of its possible positions by such shafts, pulleys, and belts, substantially as described.

3. In a combined wagon unloader and elevator, a mo unted platform having an approach at one end and an exit at the other end pivoted thereto, in combination with drums underneath the mounted platform, such drums geared together, so that when one thereof is rotated in one direction the other thereof is rotated in the other direction, ropes secured to such drums, whereby the unwinding of one of the ropes from one of the drums will Wind the other of the ropes around the other of the drums, and each of such drums connected by a pulley on the shaft thereof, with belts extending over such pulley to pulleys loosely mounted on a third shaft, a ratchet-dog on such pulleys intermeshing with a ratchet- Wheel rigidly secured to the shaft on which the pulleys are loosely mounted, so that the turning of either one of such pulleys in a forward direction will turn such ratchetwheel and shaft therewith, and an elevatorapron frame pivoted to the mounted platform and having therein an elevator-apron driven by a belt passing over a pulley on the upper shaft on which the elevator-apron runs and over a pulley 011 intermediate shafts which are driven by the shaft on which is mounted the ratchet-wheel and pulleys, substantially as described.

ROBERT S. KIRKPATRICK. 

